cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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psycho_common.h (1463B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _PSYCHO_COMMON_H
      3#define _PSYCHO_COMMON_H
      4
      5/* U2P Programmer's Manual, page 13-55, configuration space
      6 * address format:
      7 * 
      8 *  32             24 23 16 15    11 10       8 7   2  1 0
      9 * ---------------------------------------------------------
     10 * |0 0 0 0 0 0 0 0 1| bus | device | function | reg | 0 0 |
     11 * ---------------------------------------------------------
     12 */
     13#define PSYCHO_CONFIG_BASE(PBM)	\
     14	((PBM)->config_space | (1UL << 24))
     15#define PSYCHO_CONFIG_ENCODE(BUS, DEVFN, REG)	\
     16	(((unsigned long)(BUS)   << 16) |	\
     17	 ((unsigned long)(DEVFN) << 8)  |	\
     18	 ((unsigned long)(REG)))
     19
     20static inline void *psycho_pci_config_mkaddr(struct pci_pbm_info *pbm,
     21					     unsigned char bus,
     22					     unsigned int devfn,
     23					     int where)
     24{
     25	return (void *)
     26		(PSYCHO_CONFIG_BASE(pbm) |
     27		 PSYCHO_CONFIG_ENCODE(bus, devfn, where));
     28}
     29
     30enum psycho_error_type {
     31	UE_ERR, CE_ERR, PCI_ERR
     32};
     33
     34void psycho_check_iommu_error(struct pci_pbm_info *pbm,
     35			      unsigned long afsr,
     36			      unsigned long afar,
     37			      enum psycho_error_type type);
     38
     39irqreturn_t psycho_pcierr_intr(int irq, void *dev_id);
     40
     41int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize,
     42		      u32 dvma_offset, u32 dma_mask,
     43		      unsigned long write_complete_offset);
     44
     45void psycho_pbm_init_common(struct pci_pbm_info *pbm,
     46			    struct platform_device *op,
     47			    const char *chip_name, int chip_type);
     48
     49#endif /* _PSYCHO_COMMON_H */